多媒体高层语义框架及检索算法

针对多媒体信息检索中的"语义鸿沟"问题,提出了矩阵分裂方法的定义及其基本运算准则,描述了适用于多种多媒体信息的高层语义框架,利用该框架对多媒体信息进行高层语义检索,解决了检索多媒体信息的"语义鸿沟"问题.针对该框架提出了基于每次用户检索结果的部分优先算法,利用用户每次检索结果对高层语义分支权重进行自适应调整,从而达到提...

Multimedia high-level semantic framework and retrieval algorithm

To solve the problem of semantic gap in retrieving multimedia information, the definition and operation laws of matrix division method were presented, which describes the high-level semantic framework for many kinds of multimedia information. For the purpose of solving the problem of semantic gap for searching multimedia information, the high-level semantic framework was employed to retrieve multimedia information. Meanwhile, for this framework, a partial priority algorithm was proposed based on the results that each user retrieves multimedia information. The algorithm modifies adaptively the high-level semantic branch weights according to the results that each user retrieves multimedia information at each time. The retrieving efficiency is improved by the algorithm based on the framework.